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Ozone fading of phenolphthalein and aurin
Author(s) -
Matsui Masaki,
Koike Tsuneyuki,
Shibata Katsuyoshi
Publication year - 1988
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1988.tb01146.x
Subject(s) - phenolphthalein , tautomer , chemistry , ozone , reactivity (psychology) , photochemistry , ring (chemistry) , carbon skeleton , medicinal chemistry , organic chemistry , medicine , alternative medicine , pathology
The reactions of phenolphthalein, which exists as a lactone‐quinonoid tautomeric mixture in solution, and aurin with ozone have been examined. The reactivity of the lactone tautomer of phenolphthalein with ozone was found to be low and the ozone attacks the aromatic ring. In the case of the quinonoid tautomer the ozone readily reacts with the carbon skeleton. In the case of aurin ozone also attacks the carbon skeleton.